root-and-branch

adjective

1. on a large scale or without discrimination; wholesale

   root-and-branch reforms

adverb

1. entirely; completely; utterly

   Brazil needs reform root and branch

Idioms and Phrases

Utterly, completely, as in The company has been transformed root and branch by the new management. Alluding to both the underground and aboveground parts of a tree, this idiom was first recorded in 1640.